Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of method for preparing dry powder radiation heat dissipation coating

A radiative heat dissipation and coating technology, applied in powder coatings, polyester coatings, polyurea/polyurethane coatings, etc., can solve the problems of organic solvent toxicity, large environment, gelation, etc., and achieve low price, strong heat dissipation effect, and dispersibility. superior effect

Active Publication Date: 2016-01-06
苏州博德电子有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the heat-dissipating fillers commonly used in heat-dissipating coatings are aluminum nitride, silicon nitride, aluminum oxide, beryllium oxide, magnesium oxide, silicon oxide, and zinc oxide. The high toxicity of organic solvents will cause environmental pollution, and partial gelation will occur. Therefore, there is a need for a low-cost, environmentally friendly heat-dissipating coating that does not appear to be gelled.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of method for preparing dry powder radiation heat dissipation coating
  • A kind of method for preparing dry powder radiation heat dissipation coating
  • A kind of method for preparing dry powder radiation heat dissipation coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1: Comparison of a product coated with a coating according to the invention with a product without any coating.

[0036] Table 1: LED SMD Light Bar

[0037]

[0038] When the power is 12.7w, the temperature of the aluminum substrate of the LED patch light bar can reach a maximum of 95.3 degrees without coating, and the maximum temperature of the aluminum substrate can reach 86.5 degrees under the condition of coating the coating of the present invention. In comparison, the difference between applying the coating of the present invention and no coating is 9 degrees, which shows that there is a better heat dissipation effect after coating the coating of the present invention.

[0039] Table 2: Low Power COB Modules

[0040]

[0041] When the power is 4W, the temperature of the low-power COB module can reach up to 105.4 degrees without coating, and the highest temperature can reach 100.4 degrees under the coating of the present invention. In th...

Embodiment 2

[0042] Example 2: Comparison of a product coated with a coating according to the invention with a product coated with a coating based on an increased surface area, a product coated with a coating based on vibrational radiation.

[0043] Such as figure 2 The radiation coordinate diagram shown is based on the product with increased surface area coating and the product without coating. It can be seen from the figure that there is a good radiation effect at high temperature, but no radiation effect at low temperature, and the actual cooling temperature difference is between 1~2℃.

[0044] Such as image 3 The radiation coordinate diagram of the product based on vibration radiation coating and the product without coating is shown. It can be seen from the figure that the coating does not play a role in heat dissipation but hinders the effect of radiation heat dissipation. In actual use, the cooling effect is not very obvious. 1~3℃.

[0045] Such as Figure 4 As shown in the rad...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a dry powder type thermal radiation coating and a preparation method thereof. The coating comprises the following components: 65-70% of resin, 5-10% of curing agent, 2-10% of filler and 5-10% of aids, wherein the filler is mixed powder of calcium carbonate and nanocarbon. The preparation method comprises the steps of mixing the resin with the curing agent by a solvent method; extruding out, cooling and splicing; after slicing, carrying out ball-milling for standby use; ball-milling the resin, the curing agent and the filler, mixing the powder and grinding the mixture; screening the mixed and ground material; after screening, carrying out melt extrusion, cooling and slicing; carrying out ball-milling after slicing for standby use; mixing the two standby materials with the aids and carrying out melt extrusion, cooling and slicing; ball-milling the sliced material; and drying and packaging the ball-milled material. The product has the characteristics of good thermal radiation effect and low cost, can not pollute the environment or suffer from gelling, has better dispersibility than the products prepared by melt mixing methods and has good electrostatic spraying and film levelling effects.

Description

technical field [0001] The invention relates to a heat dissipation paint, in particular to a preparation method of a dry powder radiation heat dissipation paint which can enhance the heat dissipation effect. Background technique [0002] In the rapid development of society, all kinds of electrical products are developing in the direction of miniaturization, light weight, compactness and high efficiency. Therefore, electronic products with high power have been developed rapidly, and the resulting large amount of heat has no space to dissipate. It will directly affect the working stability, operation safety and service life of electronic products. Conventional cooling methods can no longer meet the heat dissipation requirements of high-power electronic products, so it is necessary to improve the heat dissipation rate of electronic products. Currently, the most used is Apply heat dissipation paint. [0003] The heat dissipation coating is to enhance the heat dissipation perfor...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09D167/00C09D175/04C09D7/12C09D5/03
Inventor 叶万玉段昌荣
Owner 苏州博德电子有限公司